Stefan Dongus , Dickson Nyika , Khadija Kannady , Deo Mtasiwa , Hassan Mshinda , Ulrike Fillinger , Axel W Drescher , Marcel Tanner , Marcia C Castro and Gerry F Killeen
International Journal of Health Geographics 2007, 6:37doi:10.1186/1476-072X-6-37